... the prepontine and suprasellar regions. The mass has well-defined margins and displaces the adjacent hypothalamus, third ventricle, optic chiasm, pituitary, midbrain and pons. Movement artifact slightly degrades the image quality; however, the compressive nature of the cyst is further delineated on axial ( c...

...Yoshie Nakamura; Katsu Mizukawa; Kazuki Yamamoto; Tatsuya Nagashima A huge prepontine-suprasellar arachnoid cyst was identified by fetal sonography and magnetic resonance imaging. It was successfully treated with a two-stage operation using a neuroendoscope. The first operation during the neonatal...